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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 56 · 40 sums
TalentJR

The trick (Anurupyena): Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a). Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.51³ =
  2. 2.99³ =
  3. 3.88³ =
  4. 4.75³ =
  5. 5.98³ =
  6. 6.76³ =
  7. 7.32³ =
  8. 8.21³ =
  9. 9.83³ =
  10. 10.14³ =
  11. 11.21³ =
  12. 12.51³ =
  13. 13.65³ =
  14. 14.89³ =
  15. 15.86³ =
  16. 16.32³ =
  17. 17.19³ =
  18. 18.61³ =
  19. 19.65³ =
  20. 20.76³ =
  21. 21.38³ =
  22. 22.48³ =
  23. 23.69³ =
  24. 24.47³ =
  25. 25.41³ =
  26. 26.21³ =
  27. 27.51³ =
  28. 28.95³ =
  29. 29.59³ =
  30. 30.41³ =
  31. 31.63³ =
  32. 32.12³ =
  33. 33.29³ =
  34. 34.54³ =
  35. 35.28³ =
  36. 36.49³ =
  37. 37.24³ =
  38. 38.41³ =
  39. 39.18³ =
  40. 40.47³ =

Answer key

  1. 132651
  2. 970299
  3. 681472
  4. 421875
  5. 941192
  6. 438976
  7. 32768
  8. 9261
  9. 571787
  10. 2744
  11. 9261
  12. 132651
  13. 274625
  14. 704969
  15. 636056
  16. 32768
  17. 6859
  18. 226981
  19. 274625
  20. 438976
  21. 54872
  22. 110592
  23. 328509
  24. 103823
  25. 68921
  26. 9261
  27. 132651
  28. 857375
  29. 205379
  30. 68921
  31. 250047
  32. 1728
  33. 24389
  34. 157464
  35. 21952
  36. 117649
  37. 13824
  38. 68921
  39. 5832
  40. 103823

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